40 



14. Palpi very long, tapering f>yrausta. 



Palpi moderate, loosely scaled Protaulacistis. 



Palpi short 25 



15. Fringe of hairs on lower median vein of hind wings. Orthomecyna. 

 No fringe as above 16. 



16. Hind wings with veins 4 and 5 closely approximated at base. 



• ;. ■ Promylaea. 



Hind wings with 4 and 5 not approximated at base. .Mestolobes. 



(XIII) PYRALIDIDAE. 



Pyralis. 



(XIV) PTEROPHORIDAE. 



Fore wings with 7 and 9 present, face tufted Platyptilla. 



Fore wings with 7 and 9 absent face not tufted Trichoptilus. 



(XVJ ORNEODIDAE. 

 Orneodes. 



A revision of the Hemipterous family Nabidae found in the 

 Hawaiian Islands. 



BY G. W. KIRKALDY. 



The Nabidae have usually been considered a part of the great 

 predaceous family Reduviidae, but constitute a separate family, 

 distinguished by the absence of the stridulatory apparatus on 

 the prosternum, by the distinctly 4-segmentate labium and by 

 the characteristic venation. The ova are inserted, whereas they 

 are deposited externally in the Reduviidae, but the nymphs, as 

 in the latter family, have three odoriferous orifices on the tergites. 



The Hawaiian species belong to one genus (though this may, 

 if one wishes, be spHt up into four subgenera) and indeed, if 

 we except the almost cosmopolitan and certainly immigrant 

 Reduviolus capsiformis, may very reasonably be considered to 

 have all developed from one original immigrant, possibly indeed 

 from R. blackburni. 



There is no need to discuss the structure in detail, as there 

 is very little in it of special interest; the venation, however, de- 

 mands a few words. 



The tegminal venation is not at all dissimilar from that of a 

 Zeline Reduviid such as Triatoma, except that the membranal 

 veins are continued furcately to the very apex. The costal vein 

 continues to the exterior angle of the apical margin unforked. 

 The subcostal and radial are coalesced (as is common in Heterop- 



Proc. Haw. Ent. Soc, II, No. 2, Sept., 1909. 



